JPH09159340A - Keep-cold chamber for use on vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a keep-cold chamber for use on a vehicle which can be mounted on a general vehicle without structurally remodelling it and which enables transporting or distributing goods to be kept cold at low cost and efficiently while the temperature is under control even for many hours or storing the goods in the chamber. SOLUTION: This device comprises a keep-cold chamber 2 made of thermally insulating material which has doors 3 at a side and has a shape and size which enable the chamber to be mounted on the platform of a vehicle. In the keep-cold chamber 2 a cooling system 4 is set, which contains a cooling system comprising a compressor, condenser, heat exchanger, etc., and operated by A.C. 100V and is capable of supplying chilled air from the cooling system 4 to the inside of the keep-cold chamber 2. It is made possible to connect the cooling system 4 to an automotive battery through a switching inverter 5 which outputs power of A.C. 100V by D.C.-A.C. conversion of the output of the battery.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a frozen flow
Dried products, chilled products held at around 0 ° C, low-temperature preserved foods and other low-temperature preserved products that are roughly kept at around 10 ° C are transported and stored in stores, households, etc. The present invention relates to an in-vehicle cold storage box for relatively small-sized transportation and delivery.

[0002]

2. Description of the Related Art For short-distance transportation of cryopreserved products such as fruits, vegetables, dairy products, fresh fish, and chemicals, a heat insulating wall is installed inside an aluminum van truck, and the inside is covered with dry ice or ice. A refrigerating car that cools is used. For long-distance transportation and transportation of frozen fish, frozen meat, etc., in order to keep the temperature inside the luggage room at a constant temperature, a refrigerating vehicle equipped with a refrigerator on the roof of the cab or the upper front of the luggage room A car is used.
In that case, the method of taking the operating power from the motor of the automobile,
Another way is to take it from an independent prime mover.

[0003]

Among the above, those that cool the luggage compartment with dry ice or ice are inferior in terms of cooling capacity and temperature control, and are used only for very limited range of goods and regional transportation. Can not do it. In addition, when using a dedicated vehicle such as a refrigerating vehicle equipped with a mechanical refrigerator and a refrigerating vehicle, a large amount of capital investment is inevitable, and it is easy to waste because it has to run regardless of the amount of luggage loaded, It has the drawbacks of low transportation efficiency and high delivery costs.

Therefore, the present invention can be mounted on a general vehicle without changing its structure, and can efficiently transport low-temperature preserved products at a low cost while controlling the temperature for a long time.
It is an object to provide an in-vehicle cool box that can be stored.

[0005]

According to the present invention, there is provided a cool box made of a heat insulating material having a shape and size which can be mounted on a bed of a vehicle and having a door on a side surface thereof, and the cool box is provided with a compressor and a condenser. , A cooling unit having a built-in cooling system of AC 100 V specification including a heat exchanger and the like is installed to enable supply of cold air from the cooling unit to the inside of the cool box, and the cooling system is connected to a power source of an on-vehicle battery. The above-mentioned problem is solved by an in-vehicle cool box which can be connected to an in-vehicle battery via a switching inverter which converts DC to AC and outputs AC 100V. The cooling system may be operated via a dedicated generator.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the accompanying drawings. In the figure, reference numeral 1 denotes a general light four-wheeled vehicle or other vehicle, and 2 denotes a cold storage box according to the present invention mounted on the carrier. The illustrated cool box 2 is provided with two doors 3 on the side surface, and a cooling unit 4 is provided on the upper surface of the front end side (driver's seat side).
Is provided. It is preferable that the cool box 2 is provided with a caster so that the cool box 2 can be mounted on a loading platform and can be easily unloaded. A means for preventing the cool box 2 from moving during traveling is installed on the loading platform. This movement preventing means is optional and may be simply applied with a loop.

FIG. 2 shows an example of the internal structure of the cool box 2. The cool box 2 as a whole is provided with heat insulating properties. The front end side ceiling wall of the cool box 2 is opened and communicates with the cooling unit 4. The cooling unit 4 has a built-in general cooling system including a compressor, a condenser, a heat exchanger, etc., but unlike a general on-vehicle (DC 12V or 24V specification), 10
Set to 0V AC power supply specifications.

That is, the cooling unit 4 is a vehicle-mounted battery.
(DC 12V or 24V) is used as a power source, and a switching inverter 5 is interposed in the middle. This switching inverter 5 receives a DC 12V or 24V input as A
Converted to C100V and output. This AC100V is the same as a general household power supply, so this cooling unit 4
Can be operated by connecting it to the outlet of a general household or store.

An outside air inlet 6 and an outlet 7 are provided on the side surface of the cooling unit 4, and an intake fan 8 is provided inside the outside air inlet 6.
Is installed, forced ventilation is performed inside and outside the cooling unit 4, and thus the cooling system is air-cooled. In addition, in order to spread the cold air generated in the cooling system to every corner of the inside of the refrigerator, the cool air circulating fan 9 is installed in the cooling unit 4.
It is preferable to install the cold air duct 10 on the ceiling of the inside of the refrigerator.

Further, it may be considered to mount a generator only for the cooling system. When an AC generator is used as a generator, it can be directly connected to the cooling system, but when a DC generator is used, a switching inverter 5 is interposed. In the cool box 2, any of the above-mentioned frozen products, chilled products and chilled products can be transported and stored while temperature control is performed.

[0011]

The present invention is as described above, and the flow is as follows.
Low-temperature storage products such as dung products, chilled products, and cool products can be cooled and stored for a long time in a predetermined temperature zone, and the in-vehicle battery can be used as a power source via a switching inverter. As a result, the load on the engine body will be less than when using DC, and not only does it have the advantage of not reducing fuel consumption, but since it can be used for general household power, it can be stored as it is from the car. There is an advantage that it can be used as a warehouse.

[0012] Also, this cool box can be easily installed in a general vehicle, requires no structural changes in the vehicle, and does not require a new vehicle inspection, so it can be easily adopted, and can be removed from the vehicle when not in use. Can be used without waste. As a result, it is possible to efficiently transport and store cryopreserved products at low cost, which will greatly contribute to the distribution of cryopreserved products that will continue to increase in the future. is there.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an embodiment of the present invention when mounted on a vehicle.

FIG. 2 is a schematic vertical sectional view of an embodiment of the present invention.

FIG. 3 is a top configuration diagram of an embodiment of the present invention.

FIG. 4 is a plan view of the cooling unit according to the embodiment of the present invention.

[Explanation of symbols]

 2 Cooling box 4 Cooling unit 5 Switching inverter 6 Outside air introduction port 7 Exhaust port 8 Intake fan 9 Cold air circulation fan 10 Cold air duct

Claims (3)

[Claims] 1. A cool box made of a heat insulating material having a shape and size that can be mounted on a cargo bed of a vehicle and having a door on a side surface thereof, and the cool box is composed of a compressor, a condenser, a heat exchanger, and the like. A cooling unit having a built-in cooling system of 100V specification is installed to enable the supply of cold air from the cooling unit to the inside of the cool box.
In-vehicle cool box which can be connected to an in-vehicle battery via a switching inverter that converts the power source of the above DC to AC and outputs AC 100V. 2. A cool box made of a heat insulating material having a shape and size that can be mounted on a loading platform of a vehicle and having a door on a side surface, and the cool box has an alternating current including a compressor, a condenser, a heat exchanger and the like. A switching unit that installs a cooling unit having a built-in cooling system of 100V to enable the supply of cold air from the cooling unit to the inside of the cool box, and outputs a 100V AC to the generator directly to the cooling system. In-vehicle cold storage that is connected via. 3. The in-vehicle cool box according to claim 1, wherein a cold air duct that guides cool air from the cooling unit to an inner end of the cold room is provided on a ceiling portion of the cold room.